<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
    <h1>{{c.gradeLevel}}{{c.name}}班主任: {{c.teacherName}}</h1>

    <input type="text" placeholder="学生姓名" v-model="s.name">
    <input type="text" placeholder="年龄" v-model="s.age">
    <input type="text" placeholder="性别" v-model="s.gender">
    <input type="button" value="添加学生" @click="insert()">
    <table border="1">
        <caption>学生列表</caption>
        <tr><th>序号</th><th>学生名字</th><th>年龄</th><th>性别</th><th>操作</th></tr>
        <tr v-for="(stu,i) in arr">
            <td>{{i+1}}</td>
            <td>{{stu.name}}</a></td>
            <td>{{stu.age}}</td>
            <td>{{stu.gender}}</td>
            <td><a href="javascript:void(0)" @click="del(stu.id)">删除</a></td>
        </tr>
    </table>
</div>

<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script src="https://cdn.staticfile.org/vue/2.6.14/vue.min.js"></script>
<script>
    let v=new Vue({
        el:"body>div",
        data:{
            c:{name:"",teacherName: "",gradeLevel: ""},
            s:{name:"",age:"",gender:""},
            arr:[]
        },
        methods:{
            insert() {
                //从地址栏中取出id的值 并赋值给学生对象
                v.s.classId =new URLSearchParams(location.search).get("id");
                //发出添加学生的异步请求
                axios.post("/student/insert",v.s).then(function () {
                    location.reload();
                })
            },
            del(id){
                if (confirm("您确认删除此学生吗?")){
                    axios.post("/student/delete?id="+id).then(function (response) {
                        location.reload();

                    })
                }

            }


        },
        created:function () {
            //通过id查询班级详情
            axios.get("/class/selectById"+location.search).then(function (response) {
                v.c = response.data;

            })
            //通过班级id查询学生
            axios.get("/student/selectByCid"+location.search).then(function (response) {
                v.arr = response.data
            })

        }
    })
</script>

</body>
</html>